Record feeding and recording apparatus



Oct. 2, 1951 R." J. WHALEN EI'AL RECORD FEEDING AND RECORDING AEPARATUS Filed Sept. 16, 1949 6 Sheets-Sheet 1 ATTORNEY Oct. 2, I951 R. J. WHALEN ETAL y RECORD FEEDING ND RECORDING APPARATUS Filed Sept'. 16, 1949 6 Sheets-Sheet 2 1951 R. J. WHALEN ETAL 2,569,840

RECORD FEEDING AND RECORDING APPARATUS Fild Sept. 16, 1949 e Sheets-Sheet s v SK/P [CARP/AGE RETURN ABCDEFGHI JxLnuoP R sruvwxYz OHM-56789 ATTORNEY 1951 R. J. WHALEN ETAL 2,569,840

RECORD FEEDING AND RECORDING APPARATUS Filed Sept. 16, 1949 6 Sheefls-Sheet 4 "Kl L 4 Tiff E67 8 6717/ ATTORNEY Fatented 2,

RECORD FEEDING AND RECORDING V APPARATUS Richard J. Whalcn and Stanley '1. Kulpa, Poughkeepsie, N. Y., assignors to International Business Machines Corporation, New York, N. Y., a

corporation of New York Application September '16, 1949, Serial No. 116,104

to an initial sensing position in such passage, andarecord sensing means which operates to successively sense the record areas of the source record for the purpose of controlling the operation of a means for manifesting the sensed datarepresenting designations. It is important in apparatus of this type that the source record he properly'positioned at the beginning of the sensing operation so that the data will be manifested without error and in a predetermined desired way.

It is a further and more specific object of the present invention to provide new and improved apparatus of the type referred to wherein upon failure of the source record to be properly positioned at the beginning of the sensing operation, further normal operation of the apparatus is automatically prevented.

According to one of its specific aspects, the present invention is described in the detail description to follow and is shown in the accompanying drawings as being embodied in the selectively controlled recording apparatus disclosed in the ccpending U. S. patent application of Francis E. Hamilton, Maxwell F. Hayes, and John D. Wolfe, Serial No. 26,624, filed May 12, 1948, which now is Patent No. 2,540,030, issued January 30, 1951.

Other objects of the invention will be pointed out in the following description and claims and illustrated in the accompanying drawings, which disclose, by way of example, the principle of the invention and the best mode, which has been contemplated, of applying that principle.

In the drawings:

Figs. la and 1b when arranged with Fig. lb at the right and above, constitute together an isometric view showing diagrammatically those portions of the read unit disclosed in the above identified copending application of Hamilton et al., which are necessary to an understanding of the preferred embodiment of the invention disclosed herein.

Fig. 2 is an enlarged fragmentary vertical section showing more in detail the record sensing 5 Claims. (01. 235-6111) means and also the passage through which record cards are fed.

-.Fig. 3 is a fragmentary view of a conventional type of record card in which is punched the code designations of a 12-position code system used in electric accounting machines of a well-known type.

Fig. 4 is a fragmentary view showing a portion of a record card in which is recorded certain selected data, for the purposes of explaining' the present invention.

Fig. 5 is a fragmentary view showing a portion ofa program tape in which is punched code designations which are used to control operations of the apparatus according to a predetermined plan.

Figs. 6a, 6b, and when arranged in sequence and in end-to-end relation comprise an electrical wiring diagram showing the electrical instrumentalities and circuit connections used herein to disclose the present invention.

As indicated above, the preferred embodiment of the present invention is disclosed herein as an improvement in the control mechanism for the apparatus shown in the copending application of Hamilton et al. It will be appreciated, however, that, in so far as certain of its broader aspects are concerned, this invention may be embodied in a variety of other record controlled apparatus. In the present drawings, the parts shown which are the same as those shown in the Hamilton et al. application, referred to, are indicated by the same reference characters as are used in such application. Only those parts of the Hamilton et al. disclosure which are essential to an understanding of the present invention have been included herein.

The general purpose of the apparatus disclosed is to manifest in a predetermined manner and without error the data recorded in source record cards as data-representing code designations. This is accomplished under the combined control of the code designations in the record columns of the cards and of control designations recorded in a predetermined manner in a program tape. The specific instrumentalities used for manifesting the data have been omitted from the present application as a detail disclosure thereof is not considered as being essential to an understanding of the present invention. In the copending application of Hamilton et a1. these manifesting instrumentalities are disclosed as two typewriters which function to print selected data on different form sheets in a predetermined manner.

The source rec0rd.'In Fig. 3 of the drawings. thereis shown a fragment of a source record card shown in Figs. 3 and 4 are placed in a hopper I04 and so that their #1 record columns are at the bottom of the hopper and their #12 index point positions are at the left when viewed as in Fig. 1a. For the purposes of this description, it will be assumed that the card HC-l of Fig. 4 is the rearmost card in the hopper I04.

The hopper I04 is defined at its rear by a fixed vertical wall or plate I53 and at its front by a each of the record columns is represented by the vertical row of figures along the left-hand margin of the card. The data punched in the several record columns of the card in Fig. 3 is interpreted, respectively, b the characters appearing horizontally across the top of the card. For example, the character A is represented in the extreme left-hand column by a code hole in the #12 index point position and a second code hole in the #1 index point position.

In Fig. 4, there is shown a fragment of a source record card containing data selected for explaining the present invention. The card is indicated by the reference character HC-l and the recorded data is interpreted by characters along the top edge of the card. The numbers along the bottom edge of the card indicate, respectively, the location of the record columns thereof. While the cards may contain any desired number of record columns, a complete card of the type shown con tains 80 columns. The card HC-l is the same as the record card appearing in Fig. 31 of the Hamilton et al. application, referred to, and is included herein as being representative of the type of records containing source data which may be used in the operation of the preferred embodiment of the present invention.

Program control tape.Fig. of the drawings shows a fragment of a program tape I5 which is used herein to control the sequence of operations of the apparatus according to a predetermined plan. The entire tape is in the form of a loop as indicated in Fig. 1a, and contains the control code designations for effecting the various required operations of the apparatus. The tape I5 is a portion of the same tape as that disclosed'in Fig. 4'7 of the Hamilton et al. application, referred to. In Fig. 5, hereof, only the part of the tape I 5 is, shown which controls the first few' operations of the apparatus, because a description onl of the initial operations is required for an understanding of the present invention. As shown in Fig. 5, the tape I5 is divided longitudinally into three different sections identified, respectively, as sections A, B, and "C." Each control designation comprises .a code hole or holes punched in a column of index point positions of a section according to a predetermined combinational hole code system. The numerals across the top ,of the tape I5 indicate the index point or code positions of the columns in the three sections. Corresponding columns in the three sections are aligned transversely of the tape and the row of identify the corresponding columns in the three sections. The manner in which the operation of the apparatus is controlled by the control designations in the tape I5 will be apparent from the description of the operation contained hereinafter.

Record feeding ipassage.-Referring now in detail to the read unit I00 which is shown in Figs. 1a and 11), source record cards of the :type

movable vertical wall or plate I55. At the time the cards are first placed in the hopper I04 the movable wall I is positioned to the right or forwardly so that the cards may be easilyinserted. The rear wall I53 is provided with a pair of rectangular openings I13 through which extend the concave shaped friction faces of a pair of card feedv sectors I and I66, respectively. In Fig. 1a. only one of the rectangular openings I13 is shown in dotted lines and the friction face of the sector I66 is shown as extending therethrough. Only a part of the sector I65 appears in Fig. 1a. The sectors I65 and I66 are shown as fixed to a transverse shaft I69. .A fixed bottom member I56 for the hopper I04 is provided at its rear with a knife-. like edge which defines the forward edge of a throat I14 (see Fig. 2) throughwhich the rear-. most card in the hopper is fed downwardly as will presently appear.

The rear wall or plate I53 extends downwardly belowzthe throat I14 and the forwardface of this lower extension provides a guide surface for each source record card as it isfed downwardly from the hopper I04. The upper or forward face of 'a card stop plate 2 I5 when the latter is in its normal position, shown in full lines in Fig. 1a and in dotted lines in Fig. 2, provides a downward continuation of the card guide surface of plate I53. A fixed guide plate I is arranged at the forward side of the lower extension of plate I53 and provides with the latter, and the stop plate 2I5 when in its normal position, a feed passage I54 for the record cards.

A pair of card feed rolls I95, I 96 are arranged, respectively,- on opposite sides of the card feed passage I54 and between the lower end of the plate I53 and the upper end-of plate 2I5. Each roll comprises a plurality of discs mounted in spaced relation on a roll shaft. The lower edge of the plate I53 and upper edge of plate 2H5 are each provided with a plurality of spaced slots which receive, respectively, the several discs of the two feed rolls. The discs of feed roll I are fixed on a roll drive shaft I4 I and the discs of roll I96 are. fixed on a roll shaft I98 and the shafts are operatively connected by spur gears 2) and 2. The two ends .of shaft I96 are journalled in levers 201 which are pivoted on studs 205 206. As will presently appear, the levers 201 are rotated counterclockwise a sli ht. amount each time a new .card isfed into the passage I54 so as to move-the roll I96 a small amount away from the .roll I95 and thereby permit the leading edge of the new card to be fed between the rolls. This movement of the roll I96 away from roll I95 is numerals along the left-hand edge of the tape not enough to unmesh the gears 210, 2I I. At the end of the operation :of feeding the new cardinto the passage 154, the levers 201 are moved clockwise to return the roll I96 into card gripping and feeding relation with the roll I95- Sensing means...The record columns of the card .in the passage I54 are sensed successively at a sensing station which is indicated generally at t0! (Fig. 2). The sensing of the record column at the sensing station is effected by a row of sepaa fate sensing elements of the star wheel type ex? tending in a line at the rear side of the passage I54. Th sensing elements correspond in number and position to the index point positions iii a record column and each such sensing element controls the opening and closing of an individual related sensing contact. In Fig. 1a, there is shown the sensing element and its related sensing contact for sensing the #12 index point position of the record column at the sensing station I01 and in Fig. 2 there is shown the sensing element and its related sensing contact for sensing th #3 index point position. The remaining sensing elements are identical in construction and they have not been shown as it would be mere duplication. All twelve sensing contactsappear diagrammatically in Fig. 6a. and are identified, respectively, by the reference numerals SCI to SCIZ.

Referring to Fig. 2, th sensing element shown comprises a sensing lever SL3 pivoted on a rod 531 and carrying at one end thereof a starshaped wheel 110 having rounded sensing points 110a. The lever SL3 is connected at its other end to a group of contact wires forming the movable element of the sensing contact SC3. The fixed contact element of S03 comprises a plate having a contact ridge 193 extending beneath the group of contact wires and adapted to be contacted thereby to close a related circuit. The.

ridge 193 is common to all groups of contact wires composing the sensing contacts. Each group of wires is electrically connected to an individual strap 180 which is in turn connected to a related circuit wire. The groups of contact wires are formed of spring stock and are anchored to a plate 182 of insulating material in such a manner that they are constantly urged in a direction to engage the ridge I93 and to move the related sensing lever counterclockwise and its star wheel into sensing engagement with a card in the passage I54. If there is no code hole in the corresponding index point position of the column in sensing position two points 110a will engage the card and straddle the column being sensed and thereby prevent its related group of wires from contacting the common contact element 193. When the card moves to bring a record column into sensing position and the corresponding index point position contains a code hole, a point 110a will engage and enter such code hole and thereby permit the sensing lever to move far enough counterclockwise to permit closing of its related sensing contact. At certain times in the operation, all star wheels sensing elements are moved out of sensing relation to the card by a bail -64I, which is carried by arms 666 fixed to a shaft 659. The bail MI is moved counterclockwise into engagement with the sensing levers and thereby moves such sensing levers clockwise from the position shown. The manner in which this is effected and the purpose thereof will be presently explained.

Feeding 'of record to initial sensing position'. The read unit I is provided with a mechanism which functions, each time it operates, to feed the rearmost card in hopper I04 downward through the throat I14 and into the passage I54 and to a position where the record column at the leading end thereof, which is its #1 record column, is in position to be sensed at the sensing station I01. This is referred to herein as its #1 7 column sensing position. As will presently appear, the stop plate 2I5 is moved into the path of the incomingnew card and where it is engaged 8 by the leading edge of the ears, the card is, thereby stopped and the stopped position of the card is its #1 column sensing position. When a card already occupies the passage I54 at the time the just mentioned mechanism commences its operation, the mechanism also functions to feed or eject such card from the passage I54 and from the read unit I00. Becaus of this latter function, this initial card feed mechanism is also referred to as-the card ejectmechanism and the cycle of operation of'such mechanism to perform the functions just stated is called an eject cycle.

Power for operating the eject mechanism and-v other mechanisms of the read unit I00 is provided by a constantly running electric motor I06 (Fig; lblwhich drives a constantly running drive shaft DS by means of a pulley I I9, belt I20, and pulley I2 I. A plurality of constantly running cams are fixed'on-the shaft DS and open and close, respectively, a plurality of relatedcontacts during each revolution of the shaft DS. For-the purposes of disclosing the present invention only five constantly running cam contacts are indicated diagrammatically in the drawingsr They are identified, respectively, as CR3, CR4, CR5, CR6, and CR9 in Fig. lb and in the wiring diagram of Figs. 6a to 60, inclusive. The timing of opening and closing appears opposite each of these con-- tacts in Figs. 6a to Sc and will be explained hereinarter in the description of the operation.

The 'initial'card feed or eject mechanism, as before explained, effects during an eject cycle the feeding of a new card into the passage I54 and to its #1 column'sensing position and effects the ejecting of any old card from the passage I54.

The eject operating cycle is effected by the engagement of an eject clutch EJC (Fig. 1b) which occurs upon the energizing of the eject magnet EJM (see also Fig. 6a). The clutch E'JC is of the one-revolution type and each time it is engaged it connects for one revolution the constantly running drive shaft DS with an eject cam shaft I34 and then disconnects the-shafts DS' and I34. A gear train composed of gears I23, I24, I26,- I23, I29, and I3I, connects the main drive shaft DS with a drive gear I33 of the clutch EJ C. The clutch EJC is shown diagrammatical ly in Fig. 1b and is of a type well-known tothose skilled in this art. For a complete description and showing'of the clutch EJC see the copending'application of Hamilton et al., referred to hereinabove.

The eject cam shaft I34 is connected to the driven side of the clutch EJC and is shown as being provided with eject control cams ECI, E03, E04, EC5, and EC'I, and also with cams for operating eject contacts ECBI and ECB2. Each time the eject cam shaft I34 makes a complete revolution these control cams and cam operated contacts effect the ejecting of any old card occupying the passage I54 and the feeding of a new card from the hopper into the feed passage I54 and to its #1 record column sensing position.

A revolution of the eject cam EC'I (Fig. 1b) clutches the feed roll drive shaft I 4I to a constantly running gear I40 for the purpose of r0- tating the rolls I95, I96 so as to eject from the unit any card in the passage I54. The gear I40 is connected to the main drive shaft DS by a gear train comprising the gears I23, I24, I26, I35, I36, and I38. The cam EC! operates the lever 698 which is pivoted at 699 and which in turnoperates a second lever 682 pivoted on a pin 683-and formed with a forked lower end 585 s .teeth: which in. the normal. position of the collar shown engage similar teeth formed on a hub of: mi. I;

When. the cam EC] rotated during the eject cycle as previously explained-the collar. 6.8 I. movedto the right. as shown in Fig. 1b so as to disengage. the clutch tooth connection between the collar 68.1 and the gear RBI and. to effect frictionai; clutching engagement between disk- BB8 andgthe' frictionelement 595 on the gear I40.

Thcwgear HI will then. drive the-"shaft I41 and the card. feed rolls I95, I96 The timing of the cam. shaft EC! is. such that the rolls commence to rotate. at about 45- of the eject cycle and stop their rotation at about 186 of such cycle and the collar '68I is restored into full clutching engagement with the gear 69I- at about 231 of the eject. cycle. r

- :Qne revolution of the eject control cam EC I moves the card feed sectors I65, I65 from their lowermost position shown; in full lines Fig. 1a and Fig. 2 to their uppermost position. shown indotted: lines in Fig. 2 from which they are then moved downward in a card feeding direction and return. to. their lowermost position. The cam. E64 isengaged by follower roller 635 which is carried by a lever 636 fixed to the transverse genesis full pressure engagement with the cards at about 188. The pressure is maintained until about 335 and the plate is restored to its forward position at the end of the cycle. From this it is apparent that the plate I55 is in full pressure engagement with the cards in the hopper during the entire time the card feed sectors I65, I66 are moving downward in a card feeding di rection.

revolution of the eject cam EC5 provides for moving the cardieed roll I95 away. from. the roll I95 a slight distance so as to permit the new card to be positioned therebetween and atlso providesfor moving the sensing bail 8H so as to move the sensing elements out of sens A shaftlfil; a iink 6M, arm 545 fixed to a transverse shaft 846, and arms 64'! fixed to the two ends of the shaft 646 and engaging the levers 201 previously described as being pivoted on studs 205', a and rotatabl supporting the shaft I98 of the roll I 96; The sensing lever bail MI is also operated from the cam E04 through the shaft 646'. An arm 654 fixed to the shaft 648 carries a pin which engages a flange on the" upper outer end of an arm 651' fixed to the shaft s53. The shaft 558 carries arms 666 (see also Fig. '2)- which support at their lower end the shaft. I69. The card-feed sectors I65, I66 are.

also: fixed; tothe shaft I69 and move. therewith. The timing of the cam E04 is such that the sec- 'tors. commence their upward movement at about.

20 of the eject cycle and complete such upward movement. at. about 140 of the. eject cycle. The. downward feeding movement of the feed sectors commences atabout 209 of theeject. cycle and the. sectors are, restored to their lowermost normalpositionat.ab0ut,310.

. A'revolution. of the eject cam-E03, moves the front pressurepl ate I'55of thehopper I'M rear wardly into. engagement with the stack. of cards in the hopper so. as. to press firmly the cards towards the rear wall I53 during the time the card feed sectors are being, moved downward. Because, of the. pressure plate, the face of thesectors are. assured an effective frictional engagement with the rearmost card HC-iand the lattercar'dis thus. fed by the sectors downward through the. throat IIlend into the passage I54.

The cam E03 effects movement of the plate I55- by a link and. lever arrangement. comprising abell. crank. 28-3, a. link 284,"arm 285 fixedto'a' transverse shaft, 286, and a second. arm- 2-98 fixed to such shaft and connected at its lowerendby aspringlfl to the lowerendof an arm IBI The lower end of the arm IBI is also connected to" the plate I55'by means-ofa pin ifin fitting-within an opening in a bracket member I 63 fixed tothe plate I55. The cam EC3 effects clockwise move ment of the arm 2-90 as viewed in Fig. 1aand such movement of the latter stretchesthespri ng 294, and thereby pulls the 'arm 'IEI" clockwise and the latter effects rearward movement of the: plate I55 into engagement with-thecardsin the hopper I04. The timing of the-cam EC3 is such. that the plate I55 commences its rearward moverne'nt at about 148 of the eject cycleand is in ilk Iii

sensing lever bail 6M. EC& is such that the roll I96 moves away from the -r'ol-l lif5 beginning at about 186 of the eject cycleand the full separating movement is effected at 231. The roll I96 is returned into card feed" relation with the roll I95 beginning at 310 and ending at 335 of the eject cycle; The timing of movement of the sensingbailisthe' same as the movementof the feed roll. That is, the bail commences to move the sensing levers out of sensingposition at 186 and continuing to 231andthe restoring movement of the bail commences at 310 and ends at 335. From the foregoing description of the card feed sector cam it is noted that the downward feeding move ment of the sectors terminates'at 310 and at this point in the cycle both the feed roll' I 93 is fully separated from the roll I95 and the sensing levers are completely out of sensing relation with respect to the passage I54.

The stop plate 2I5 determines the #1 column sensing position of the new card which is fed into the passage I54 from the hopper I04. The stop plate M5 is operated by the eject control cam E'Ci througha'link and lever arrangement composed of hell crank 2'59 pivoted on shaft H39, a link 2-6I', an arm 262 fixed to transverse shaft 215'and to which the stop plate 2 I5 is also fixed. The timing of cam EC] iss'uch that the stopp' late [2'I5 'is moved from its normal position,

shown in full linesin Fig. 1a and in dotted lines.

in Fig. 2, to its card intercepting position, shown in'tull-li nes in Fig. 2, commencing at about 210 ofthe-eieot cycle and ending at 230 of the cycle; The stopvplate remains at its intercepting position across the passage [54 until 335 of the cycle, and is: restored to its normal position. shown in dotted lines in Fig. 2- at about 353. of the cycle.

The timing of the cam are moving downward to feed the new card into the passage. When the sectors I65, I66 effectively'feed the new card downward the leading edge of the new card engages and is stopped by the upper intercepting edge of the stop plate 2I5 at about 297 of the eject cycle.

Fig. 2 shows in full lines the position of the parts after the card HC-I has been properly fed from the hopper I04. The parts are shown at about 335 of the eject cycle. The stop plate 2l5 is still in its intercepting position, the rolls I95, I96 have been restored to card feeding relation, the sensing bail 641 has returned the star wheel sensing elements 110 into sensing relation with respect to the card in the passage I54, and the leading edge of the new card HC-I engages the intercepting edge of the stop plate 2I5 and thereby occupies its #1 column sensing position.

As will appear more fully hereinafter, the principal purpose of the present invention is to prevent further normal operations of the apparatus in case the card fed from the hopper should fail to reach the #1 column sensing position.

Normal record feeding and sensing.-With a record card properly positioned at the sensing station I91 at the end of the eject cycle, the card may be correctly sensed and advanced column-by-column past the sensing station I01 for successive column sensing, by the operation of a normal card feeding and sensing means. The operation is such that for each normal operating cycle of the read unit I in which the normal card feeding and sensing means is activated, the record column at the sensing station I01 is sensed and the card is then fed to bring the next succeeding record column into sensing position. It is noted that a normal operating cycle of the read unit I00 corresponds to one revolution of the main drive shaft DS. Activation of the normal sensing and feeding means is effected by the engagement of a card feed clutch CFC (Fig. lb) and the latter is effected by the energizing of the card feed clutch magnet CFM (see also Fig. 6a). The selective control of the energizing of magnet CFM and the timing of the operation will be explained hereinafter in the description of the operation in connection with the wiring diagram of Figs. 6a to 60, inclusive.

The card feed clutch CFC is of a type wellknown to those skilled in this art. The clutch is shown diagrammatically in Fig. lb. complete showing and description of the details reference may be had to the copending application of Hamilton et al., identified hereinabove.

The driving element of the clutch CFC is driven continuously by the gear I24 which is the same size as and is in mesh with the gear I23 fixed to the continuously operating drive shaft DS. The driven element of the clutch comprises a pawl pivoted on a disk fixed to the card feed shaft I25. The driving element has a single radial notch which receive the pawl when the magnet CFM is energized. The result is that the clutch always engages at one particular point in the rotation of the shaft DS and the shaft I25 rotates at the same speed as the shaft DS.

Power transmitting mechanism connects the card feed shaft I25 and the gear 69I and provides for driving the card feed roll shaft I4I with an intermittent motion so as to feed the card in sensing position a distance equal to one record Fora column for each revolution of the shaft I25 and shaft D8, which, as stated, corresponds to one normal operating cycle. The power transmitting mechanism includes a conventional Geneva drive GM comprising a drive roller carried by a disk 142 fixed to the shaft I25, a Geneva star wheel 143, having six radially disposed slots 145, and a locking disk 141. The power transmitting mechanism also comprises a gear 152 fixed to the Geneva wheel 143 and meshing with gear 153, a differential mechanism DM including an output shaft I31, and meshing gears 163, 164, and 69L The gear 153 drives one sun gear 1550f the differential mechanism. The other sun gear 156 is held stationary during normal card feeding and sensing operations by means not shown herein as it is not necessary to an understanding of the present invention. The planet gears 158 mesh with sun gears and 156 and are mounted on a planet arm fixed on the output shaft I31v and extending through the axis thereof.

As shown in Fig. 1b, the drive roller 14!] of the Geneva is within a slot 145 of the wheel 143 for about 120 of each revolution of the shaft I25. As explained previously, the clutch collar BBI, except during an eject cycle, occupies the position shown in Fig. 1b, where it is clutched to turn with the gear 69I. Thus, during about 120 of each normal cycle when the card feed clutch is engaged, the feed roll shaft MI and the feed roll shaft I98 (through gears 2H], 2), are rotated. The amount of movement of the feed rolls I95, I96 which is determined by the speed reduction in the power transmitting mechanism, is just enough to advance the record card one record column for each cycle. The timing is such that the card is moved beginning at about 240 of a normal card feeding cycle and ending at about 360 of such cycle.

It is noted that the contacts CFI (Fig. 1b) are actuated by a cam fixed to the card feed shaft I25. As will later appear, these contacts CFI, when closed, permit current to flow through the sensing circuits which include the sensing contacts SCI to SCI2, inclusive. (See also Fig. 6a.) The contacts CFI close at about 30 of each normal card feed cycle and open at about 180 of each such cycle.

Program tape feed.After the unit II!!! has gone through an eject cycle which, as explained, provides for feeding a new card to its #1 column sensing position, the sequence of operations of the apparatus is then controlled according to a predetermined plan by the code designations in the program tape I5. At the end of an eject cycle, the tape I5 is positioned with its #2 column at a tape sensing station I98 (Fig. 1a). A row of sensing brushes extends across the tape at the sensing station, there being one brush for sensing each index point position of each row in the sections A, B, and C. In Fig. 1a, only the six brushes BAI to BAG, inclusive, which sense, respectively, the six index point positions of section A of the tape are shown. All sixteen of the sensing brushes are indicated diagrammatically in Fig. 6a, but only the operation in connection with section A and the brushes BAI to BAB, in-

clusive, will be described herein because a complete description of all sensing operations is not necessary to an understanding of the present invention.

Mechanism is provided for advancing the program tape one column for each normal operating cycle which, as stated, comprises one revolu- 11 tion of the shaftDS. This mechanism comprises atape feed clutch TFC (Fig..1b.-) which is operated by the energizing of. a. magnet 'IFMand functions to connect a constantly running-shaft I39 to'a gear I44 which hasav driving; connection with a tape feed. drive shaft II (Fig. la). The shaft'I30 is connected to the constantly running drive shaft DS by a gear. train.- comprising the gears I29, I28, I25, I24, and I23. Thefgear' I44 is connected to the tape feed. drivesha-ft- I5I by a motion transmitting means comprising" gears I45 and I41, shaft I48, and gears I49 and: I50 (Fig. 1a).

The tape feed clutch TFC is shown diagrammatically in Fig.- la. and will be recognized. by those skilled in this art asbeingof awell-known type. For afull disclosure thereof reference may be had to the .copending application. or Hamilton et al., identified hereinabove; Generally, the clutch. TFC comprises a loetooth. driving disk 825 fixed to the'end. of shaft I39, a; driven disk 82'! rotatably mounted on shaft I3Il-a-ndeiixed to gear I44, a latching wheel- 834 rotatably mounted on shaft I30-bet-ween the disks 82-5: and 821 and having tenperipherallatching teeth, and a pawl 828-adapted to have clutching engagement with the disk 825 andpivoted on a stud extending from the driven. disk 82.! and 'betweeny spokes of the latching wheel. When-the magnet TFM is dcenergizedthe end-of its. armature engages a peripheral tooth-of the wheel 83* and a spokeof thelatter engagesa pin' orr the paw-1 B26 and thereby holds the latter out of clutching engagementw-ith thedisk. 825. When the. magnet isenergizeithe whee1 834-is released and the latter releases-the pawl. 828 which engages a tooth of disk 825 and. thereby clutches theparts together.

Operation.The operation i and functions of the preferred embodiment .will. now' be described in connection withv the wiring diagram-disclosed inFigs. 6a., 5b,,and 60. In following the 1descrips= tionof the operation in connection with :the wit:- ing diagram the Figs.v 6a, 6b; and. 6c shouldbe arranged in end-to-end relation and. in: theorder named.

In the diagram all switchesare shown intheir off position and. all relay contactsare shown-in the position they occupy with their-related: relay coils deenergized- The constantly running. cam contacts CR3, CR4, CR5, CR6, andCRQ are shown in the diagram intheposition; they occupy atthe 0 or 360. position of a normaloperatingzcycle and alongside each of. the: latter contactsris a legend. indicating the .time in; each. normal; cycle atwhich the contacts make andbreaka The card feed. cam contacts CFI are. shown inthe position they occupywhen thecard feed clutch CFC is-disengaged.- The make. and break time of contacts CFI ina normal cycle whenthe clutch CFC is engaged, is also indicated in the diagram-alongside of the. contacts. The eject cam contacts ECBI and ECBZ areshown in the positions they occupy with the clutch EJC disengaged... The time the contacts ECBI andv ECBZ. make and break during an eject cycle is. also indicated. in thewiring diagram. alongside such contacts.

To start operation, the main. power. switch MS (Fig. 6a) and. the motor switch SW#-3. (Fig. 6b) are both closed. The switch MS. connects a suitable direct current powersupply to a. main positive conductor 90!] extending along the left-hand side of-the diagramand to amain negative conductor 9M atibe right of, the diagram. The switch SW#3 closes anenergizing; circuit for the 12 motor- [06- which: extends across. the} power. con: ductors' 900 and MI.

With the.- motor I06 running, an eject-cycle is effected to feed the rearmost-cardHC-I from the. hopper. [04;(Fig, 1a) to itst lcolumn, sensing position in the passage I54, as. before explained. An ejectcycle isefiected by energizing. the eject control relay RI3- (Fig. So) which then closes its contacts RI3.-4 (Fig .:6a) to establish an ener ing circuit for the. eject clutch magnet EJM. Provision madefor energizing RI3 in either of three ways;. viz., by placing a-card or cards. in the hopper IM-whenthereis no. card. in the.pas.-. sage I54; by manually depressing an eject key EJK..(Fig,.. 6b) or bythe sensing of a significant codedesignation. in the program tape I5.

In placing. a cardor cards. in the hopper I, when. thereis. no card. in the. passagev I 5.4 a card lever 2M (Fig. 1a) is engaged and is moveddownward to close. hoppencontacts I-ICv (see-also Fig. 60), with the resultthat-the latter establish. an energizing. circuit. for the. pickup coil of RI3.

' The card lever. 224 is fixed on a. shaft 223 and extends across the lower part of the hopper. The placing of a card, or cards, in the hopper moves. the card lever224 .downward. toa slight degree. The. latter. rotates. the shaft 223. An arm 225 on the outer. end of .shaft 223 is. rotated clockwise enouglrto release,themoyableblade of the hopper contacts. HC and the.inherentspringiorce in themovable .bladeisenough to close the con-. tacts HC. In Fig. 1b, the cardsare shown asbeing inserted in the hopper and. iust before they movethe cardyleverjzl. and closethe contacts HC as just explained;- The. circuit closed by the contacts HC (Fig.,..6c) extends across the supply conductors 900 and!!! vand includes the. normally closed; card lever. relay contacts. R2294.

The manual depressing. of .theeject key EJK (Fig. fib'icloses contacts whichestablishan energizing circuit for the pick up coilof relay, R220. This circuit extends acrosstheconductors 900 and SIM. and, also includes the. constantly runningmcam contacts CR3. In. a mannenwhich will later appear the sensing of a code designation in the. tape. I.5' selected forsignifying aneject op,- eration, results. in vthe. energizing of a predetermined one orones of, the tapecode set upvrelays RIHB to RI93, inclusive, (Fig. 6a) and the energized relay or relaysadjust their contactsin the pyramid network of Figs. 6b and .ficand thereby conditionan energizingcircuit path therethrough which also. includes..the. contacts, CR3, the normally, closed contactsRIAL-d'. ofv thev main interlock control relay R.I.4,.and apledetermined one of theloutlet terminal. hubs. of the, pyramidnetq work. A. plug connector. connecting such one outlethub with thefunction hub EH4 will include the pick up, coil oftherelayRZZO inthe conditioned'circuit path throughthe pyramid network. As aneXample a plug connectorr 982. is shown connecting the terminal hub FRI-I22 with the function hub FH4. The relay R220: when energized either by depressing. the. key EJK..or by the sensing. of a significant code designation in, the tape I5, as just explained, closes. its. contacts R2204 (Fig. 6c) and thereby establishes an energizing, circuit. for. the pickup coil of, the eject control relay RI3. R220. also closes itshold, contacts RZZIl-B to establish an energizing circuit for its hold coil which includes. the cam contacts CR9.

In describing the present invention, it will be assumed that no card occupies the passage I54 (Fig. 1a) and that the eject. operation is effected by placing cards in the hopper I04 which results in the card lever 224 closing the hopper contacts HC and energizing the pick up coil of RI3 (Fig. 6c),-as explained above. In additionto closing its contacts RI3-4 (Fig. 6a) and energizing the eject clutch magnet EJM, RI3 also closed its hold contacts RI3-I (Fig. 6c) and establishes an energizing circuit for its hold coil which includes the normally closed eject cam contacts ECB2. Thus, the relay RI3 remains energized until 335 of the eject cycle when the contacts ECB2 open to break the hold circuit for RI3. The eject magnet EJM then deenergizes and permits the eject clutch EJC to latch up at the end of one revolution of the shaft I34, in the manner previously explained.

The eject control relay RI3 also closes its contacts RI3-2 and thereby energizes the pick up coil of main interlock control relay RI4. A hold circuit for R is established through its hold contacts RI4-2 and the constantly running cam contacts CR9. This hold circuit is useful at the end of the eject cycle for holding RI4 deenergized through the end of the eject cycle and until 50 of the following normal cycle. At 335 of the eject cycle ECB2 open to drop out RI3 which then opens its contacts Rl3-2 and thereby drops out the pick up coil of RI4. At this latter time CR9 is closed and holds RI4 energized until CR9 opens at 50 of the next normal cycle. The normally closed interlock contacts of RM are thus opened during the eject cycle to prevent the establishing of sensing circuits and other circuits which'should not be established during this time. Contacts RM-I (Fig. 6a), when open, prevent the establishing of sensing circuits through the program. tape. The opened points of RI4-9 prevent the energizing of the card feed magnet CFM. Contacts RI4-4 (Fig. 6b), when open, prevent the establishing of energizing circuits through the pyramid network.

The mechanical operation which takes place during the eject cycle has been explained hereinabove under the heading, Feeding of Record to Initial Sensing Position. It is noted that as the card I-ICI is fed downwardly through the throat I14 into the passage I54, the card lever 224 continues to be moved by the card from its position shown in Fig. 1a to its position shown in Fig. 2. In moving to the latter position, the card I lever 224(Fig. 1a) rotates the shaft 223 still further in a clockwise direction and so that the hook-shaped arm 226 on the outer end of the shaft 223 moves the movable blade of contacts CLC sufliciently to close the contacts CLC.- As long as a card remains in the passage I54 the lever 224 remains in the position of Fig. 2 and the contacts CLC remain closed. The closed contacts CLC (Fig. 6c) establish an energizing circuit for the pick up coil of the card lever control relay R229 and the latter then closes its hold contacts R2294; to establish a circuit for its hold coil including the eject cam contacts ECBZ which are closed at 355 of the eject cycle and remain closed until the card is ejected from the passage I54 during the next eject cycle. R229 also opens its contacts R229-2 and thereby breaks the energizing circuit for the pick up'coil of RI3 which includes the hopper contacts I-IC. R229 closes its contacts R229-I (Fig. 6a) to condition sensing circuits'for the program tape I5, and closes its contacts R2294 to condition sensing circuits for the card I-IC-I in the passage I54.

At the end of the eject cycle, the card HC-I normally occupies its #1 column sensing posi- 14 tion and the tape I 5 is in position to have its #2 column sensed. The succeeding normal opera tions of the apparatus take place in the manner fully explained in the application of Hamilton et al., referred to above, and such succeeding operations are effected under the control of the control designations in the tape I5 and of the designations in the card HC-I. e

' In the eject cycle, it sometimes happens through accident or carelessness on the part of the operator in placing the cards in the hopper, that the new card being initially fed does not reach its #1 column sensing position. With a card thus improperly positioned initially, the normal succeeding operations of the apparatus will result in the data in the card being improperly manifested and in spoiling the work. Obviously, it takes time and costs money to replace the copy and the amount of time wasted will depend to some extent upon how soon the error is detected.

In accordance with the present invention, provision is made herein for immediately and automatically stopping further normal operations of the apparatus when a card has not been properly fed during an eject cycle. In fact, when a card is not properl fed initially to its #1 column position, normal operations are stopped before any printing or other kind of manifesting can be done, with the result that no work is spoiled and all that is then required is to eject the card and reinsert it in the hopper in its proper sequence.

With the closing of contacts R2294 and RI4-I a sensing circuit is conditioned for the column #2 of the program tape which, as described, is now in sensing position. As shown in Fig. 5, column #2 of section A of the tape contains a code hole in its #1 index point position. This is the code designation for turning on the tape feed. This circuit extends from the positive conductor 90!! and includes the cam contacts CR5, contacts coil of RIBS.

RI88 transfers its contacts RIBS-l (Fig.'6bl and thereby conditions a program control circuit through the pyramid network previously referred to, and including the pro ram outlet hub PRHI the plug connector 908, function hub FHI9, and the pick up coil of the program-feedo'n relay R2l9. This conditioned program control circuit is closed by CR3 at of the normal cycle following the one when RI 88 was energized.

The relay R2I8 is held energized by a circuit including the normally closed eject cam contacts ECBI (Fig. 6a), the normally closed contacts R2I9-I ofthe program-feed-off relav R2I9. the hold contacts R2I9-4 of R2I8. and the hold coil of R2I8. Thus, the program-feed-on relay R2! will remain energized until the next eject cycle when card HC-I is ejected from the passage I54 and contacts ECBI open, or, until the programfeed-ofl' relay R2I9 is energized and opens its contacts R2 I 9-I.

R2I8 closes its contacts R2I8-I and thereby conditions an energizing circuit for the tape feed clutch masnehTEM-w ich: de e: ntro fs em o t cts- R5."- h r i t nds rem hean fi d Q I'E hro h now.- lo ed contactsRZ-ZSA .andRIA-I. wire 93-4 nowaclosed contacts-R2 I B-I andthemagnet TEM Thus,; th:is circuit is p ulsed or closed by CR5. at 29.5- Ufa-Bflfih normal-cycle and openediat 36,0 of such-cycle. The operating timing of-the clutch TFC is such that the clutch paw-1 engages a tooth-:at 360 and is. disengaged at 90 of the-:following cycle;- Thus-,- the tape I moves from-3609 and until- 510? of the next. cycle and eachcycle thereafteraslong; as R2I8 remains energized. The amount: of; tape movement in each cycle is-.-just. en ough.- tog;.bring the next or succeeding. column of; thetapeqIS into sensing position-under thexsensing glorushes. At295-" of each cycle- CR-5 closes torsensethe column of the tape I5 atsensing position; 7

It-is noted that as-the.-tape I5 does not; move from the #2 column sensing.position-until the end of this first cycle when the magnetzTFM was energized; column .#2;is-.again read/when CBS-closes to: energize the magnet-'TFM: This will not'affect the operation inthis=-first-cycle; however, asall that happens is that the-circuit through the pyramid network including the-pick upcoil of R2I8-is againenergized. As the hold coil-of R218 is already energized nothing additionalwill happen.

Column #3 of the tape I5 (Fig. 5) isreadat 295 of the-following cycle'ancl the code hole in the #3 index-point position, when sensed, re-.- sults in energizingthe tapecode set up relay RI 9!] and the consequent. conditioning: of-- a program control circuit. throughrthe pyramid-.network of Figs; 6b and 60 which includes: the? program outlehhub- PRHa-(Fig. 6c), the plug connector 9-I5,- function hub EH33, and the pick up -coil of the card-feed-onvrela RlI. When CR3 closes at80 -of the next-cycle RI I is thusvenergized. RI I :is thenw held energized by a .circuit including the. eject.cam-contacts-ECBI (Fig; 6a.)..thenonmally closedcontacts Rl2- I of: the. card-efeed -ofl relay R-IZ, the hold contacts=RI"I-I and the hold coil of-RI I. RI l-also -closes itsicontacts,R;IiI. -.3 andthereby establishes an energizing: GiIiCU'itT fGI' the card feed clutch magnet The candfeedclutch CFC' engages at .--the v end of: the,- cycle when RI I isenergized and; the-card-fee.d: shaft I then begins to turn with-the cycle. following: At of this-following cycle, the .ca-rd 'feed-cam contacts CFI (Fig. 6a) closefto.establish'sensing circuits through the card sensing contacts-.SCI to--.SCI2-,= inclusive, the latter being. opened=-or remaining closed, depending-upon thee-particular code. combination in the. #1 column of. card- HG .-,.I nowatthe sensing; station-I01. I

It is noted that, inthe-commercial ap lication disclosed in. the Hamilton. et al; application -re ferredto above; and: in. the preferred embodiment disclosedherein, the firstor #l-columnofieach card. has. a code'holesignifying .the classification to which suchcard belongs- 'In theinormalfoporation, the card is classified-atthis pointimthe program. and this-classifying of the-carde'controls subsequent operations of the-apparatuses is fully disclosed in Hamilton eta-l. Asshown; inFig-wi the particular card HC-I- which has been shown hereinas a typical-example; containsa-code hole in-the -#-1- indexpointiposition of its column andsuch code signifies that the card is a heading card belonging to class: #1.

The fact that column #1 of each: cardsalways contains -acode hole in-one of itsindexapointrpositions, is -used -herein conjunction with can:

tmL-.- cu t o desc i ed; to ef ct:.theai1t matic .stoppin-g of the-operation of the-apparatus when the initial card'gfeed-ing operation does not properly. position the CBIGBItfitSj #:lg c0lurnn; senss positi Rieferring backio the-cycle in which the carddw re ey- R w ersizedi yfiii t: .0? andin-which the card'feed clutchCFC wasengaged at-the.endmfisuchcycle; it is notedathat when: closed at- 295 of such cycle, column #aofgthetape I5 was;s ensed. shown; in Fig. 5} tape column #4. contains code holes inthei #2; #3, and; #14 index: pointpositions of: sectiQnA thereof: The sensing; of: this column: by; the closing 1 of: results in the energizing; of; tape code set up relays RIBS, RI9U, andfRliejl'ihfthe same manner as; in previouslwdescribed tape sensing operations; RIBS; R190; andJRIBZI then adjust their. contactsrin the pyramid network and thereby condition; a; program control; circuit therethrough whichrincludes program outlethub PRH32?-(Fig: 61c); plug connector 9.16; hubi 9H; and the coil offdistributonrelay R24] This con-.-. ditioned pro ram: control circuit is-closedabyfifti! (Fig. 65') at ofnthe cycle followingthe. sensing ofcolumnr #4 of the tape and-this following cycle is the same: as the-eonein-whiclr the cardrfeed-ca-m contacts closed at,,30.,1 as described above,-.to es.- tablish sensing circuits-through the cardsensing contacts SCI r? SCI 2;. inclusive. 'Ihedistributor relay R2i4'I" (Fig. 6c)" hastwo setsaoi contacts identifiedras R243 l and R2 41- -2; respectively; The SetZ'Of COIItaGbS'RJ IFI'IiSOODP nected'by' a; plugconnector- 923? to function. hub/ energized; and. thereby establishes energizing circuits through RZfl-I and-"Rzd kztfor the relays R I Z. and- R1 8'; respectively.

'- Thus, the card-classify relay R18- is energized duringthe" same cycle. as contacts CFI close to sense'the- #1 column of-the card. RIB closes its cntact's RIB-I to establish a classifying-circuit which includes. the #Zcontactsofeach of *the twelvecard'code set up relays R=IOI-to-RI I2, in-. clusi've, and card-classify hubs-CHI to CHI2; inclusive; The plugged classifying circuit network at the negativeside of the card-classify hubsz has notbeen included herein as a. disclosure thereof is not-necessary to an understanding'ofthe pres-'- ent invention. The beginning'of such network has been 'indicateriin Fig. 6c by broken plug connectors. Fora full-disclosure of the network-reference maybe'had to the Hamilton et al. application, referred'to above.

' In a'normal'operation whenth-e' card HG-I has been properlypositioned' at'the #1 column sensing position by the eiectoperation, the #1 column ofthe: card isssensed; In; the example being described column #I of-card HG-I (Fig. 4): is sensed andthiscolumn contains-a code hole in its #1 indexrpointpositioni As a result; sensing con-- tacts SCI? (Fig. 6a) are closed 'and'the' contacts CF-I whenclosed establish an energizing-circuit through contacts SCI and. the pick upcoil of the related'card code" set up relay RI'OI. RI'IH thencloses its hold contacts RIM-6 to establish an energizing circuit for its hold-coil including theacam contacts CR6. RIIII- also closes its classify. contacts .RI OI-J (Fig, 60) to establish 'a classifying circuit through the now closed con- -.;tacts RI8-l As it is assumed that the card HC-I is properly positioned'at the #1 column sensing position, normal operations of the apparatus will continue in the manner fully disclosed in the Hamilton et al. application, referred .to above.

According to the present invention, if the card is not initially placed properly at its #1 column sensing position, the closing of the card-classify relay contacts RI8I will establish an energizing circuit for the program-feed-ofi' relay R2I9 (Fig.

. 6b) which'will then open its contacts R2I9-I (Fig. 6a) in the hold circuit previously described for the program-feed-on relay R2I8. R2IB will then become deenergized and open its contacts R2I8-I in the pulsing circuit for' the tape feed magnet TFM. This will latch up the tape feed clutch TFC and thereby stop further normal operations of the apparatus.

When the relay R2I9 is energized, as just explained, the only way to start normal operations again is for the operator to effect an eject operation which will eject the card from the passage I54 if the card has previously reached the feed rolls I95, I96 (Fig. 1a.). If not, the feed sectors I65 and I56 will feed the card against the stop US. When the card reaches and is stopped by the stop plate 2I5, further movement of the feed sectors will simply cause the friction feeding surfaces of the sectors to slip over the surface of understanding of the present invention. Consequently, at the end of the eject operation, normal operations commence again in the same manner, as described above. Thus, the operator is notified by the stopping of the machine when a new card is not properly initially fed to the #1 column sensing position and the operator can then take care of the matter without work being spoiled.

The manner in which the failure of the card to be initially fed to the #1 column sensing position energizes the program-feed-off relay R2I9 will now be described. A failure of the card to be properly fed initially would result in either of two conditions. Either the leading edge of the card would reach a position in the passage I54 where all of the sensing elements would engage the marginal portion of the card marked E in Fi 4 which is before reaching the #1 column, or the card would stop in a position where the sensing elements would not contact the card at all. In the first condition none of the sensing contacts SCI to SCI2, inclusive, would close as the sensing elements would all engage the imperforate marginal'part E of the card, and in the second condition all of the sensing contacts would close as the sensing elements would, not engage the card at all. Provision is made herein for energizing RZIS when either of these two conditions occur in the part of the program of operations where the first cardcolumn is sensed.

- Should the card not be fed completely against; 1

the stop plate 2 I 5 with the result that the sensing elements all engage the marginal portion E of the leading edge of the card, none of the sensing contacts will be closed and consequently none of the card code set up relays will be energized. With this condition an energizing circuit for R2I9 will be established which is traced as follows: From the positive conductor 900; a Wire I000 (Fig. 6c) now closed card-classify relay contacts RIIl-I ;v a wire IO0I (see also Fig. 6b) the serially connected normally closed contacts RIM-5 to RI I I-5 of thecard code set up relays RIIII to RI I I, inclusive, which are not now energized; a wire I002; the normally closed points of transfer contacts RIIZ-B of the card code set up relay RI I2; and through the coil of RZIB to the negative conductor 90L As this energizing circuit for R2l9 contains normally closed contacts of all twelve of the card code setup relays, such circuit can be closed only when all twelve of the card code set up relays are not energized. The manner in which the relay R2I 8 deenergizes the program-feed-on relay R2 I 8 (Fig. 6a) and stops normal operation of the apparatus has been described hereinabove.

Should the new card not be fed during the initial eject operation far enough for the sensing elements to contact the edge of the card, then all sensing contacts SCI to SCI2, inclusive, will be closed and all related card code set up relays RIOI to RI I2, inclusivewill be energized by CFI (Fig. So) when the latter close to sense the #1 column. Withthis condition the program-feedof! relay R2l0 (Fig. 6b) will be energizedby a circuit traced as follows: From the positive conductor 900; contacts CR3; now closed contacts RI4-4; a wire I003; the now closed contacts RIIII-B and-RIII-9 of card code set up relays RI I0 and RI I I; the now closed points of transfer contacts RII2-9 of the card code set up relay RI I2; and thence through the coil of the program-feed-ofi' relay R2I9. to the negative conductor L It is noted that the normally open contacts of only three of the card code set up relays, RI I2, RI I I, and RI I0 are used in the last described circuit for energizing .the program-feed-off relay R2I9, because the combination of code holes in the #12, #11, and #0 positions are never used in the commercial application of the invention described, to designate data or control operations and consequently these relays are never energized together at any time a card is at the sensing station I01. Normally open contacts of the remaining nine card code set up relays could also be used in this circuit, but they would be superfluous as the three used when energized at one time accurately signify that there is no card at the sensing station.

It is also noted that normally closed contacts RI I2-8, RI I I-8, and RI I0-B (Fig. 6c) of the card code set up relays RI I2, RI I I, and RI I0, respectively, are connected in parallel between the card classify relay contacts RI8'-I and the classifying contacts-RIM; to RI I 2-2, inclusive, of the card code set up relays.' The purpose of these contacts, RI I2-8, RII|='-8,.and RIM-8, is to prevent the energizing of any of the circuits in the card classifying'network previously referred to, when the card is not initially fed far enough in the passage I54 for any part thereof to be engaged by the card sensing elements.

While there have been shown and described and pointed out the fundamental novel features of theinvention as' applied to a preferred embodiment, it will be understood that various omissions and substitutions and changes in the form and details of the device illustrated and in its operation may be made by those skilled in the art without departing from the spirit of the invention. It is the intention, therefore, to be limited only as indicated by the scope of the following claims. I

What is claimed is:

1. In apparatus of the type described, the comammo 1 9 -"-'bination of -means providing-m passage i for re- -=ceiving a --record containing data-representing designations; means determining an initial record sensing position in saidpassage; initial recword feeding means -'operable '--to feed'records one ata time into said passage-aridio-said initial --recor'd sensing position; sensing means operable 'upon a completion of the operation of said initial feeding meansan'd normally effective to sense-initially apart of the record at said initial position and operable thereafter to sense remaining parts of 'saidrecord-said sensing means --also"- being effective-to "sense the absence of a properly positioned record in the "event'said initial record feeding meansiailstofeed a record accurately into said-"initial position; and means 'controlled by said sensing-means*andoperable to ;-'prevent normal succeeding "operations of "said apparatus in the event said'initial record feeding meansfails to feed a record accurately into said initial-sensing position.

2. Apparatusaccording to claim 1 wherein the -means determining; said initial :record sensing "position comprises a stop element normally ocoupyingan inactive position outside-ofgsaid-passage-and 'being movable; uponoperation of, said -initial record feeding means, to-an active posiftion across said'passage where it intercepts and :stops the record being initially fed and said stop .isbeing moi/'alzile -backtoits said inactive position vance said record-so as to bring a recording area.

"into sensing-position programming means oper- =.zable to effect-succeeding operations of said apparatus :according :to a spredetermined plan means efiecting operation of said"'initial:record feeding means; .meansefiective upon the termination of reparation of saidzinitial feeding meansfor initiat- -:ing :operation *of 1 said programming means; :"means :controlled iby said programming means for ;operating tsaid normal sensingand feeding tr-means; and means 'controlledbythe initial sens- -ring operation cf said normal'sensing and feeding ;..means, for stopping operation of said; programmingdneans when :thewecord fed :intoasaid .pas- :sage by said initialyfeeding: means:doesinot:.prop erly occupy said initial record :rsensing position, .and in sucha manner :that further normal operation of said apparatusis; prevented.

x4. -.In apparatus forimanifestingdata contained :in source records :-.as,:-cdata -representing designa- ,tions, the combination 'ofnmeans -,.providing a.

record 'feeding-andsensing passage initial record feeding means operableto feed a record into-said passage; means-comprisinga-stop element nor- -'mally occupying an inactive position outside of said passage and being movable, upon :operation of'said initial feeding means-to an'active positionacrosssa-i'd passage where it intercepts-and stopsat-an initial -record sensingposition the record being 'initially'fed, andsaid stop'element being movable back'to' its said inactive position upon completion of operation or said initial record 'ieedingmeans; normah'ecord sensing and feed ing means operable'in steps and effective during -=each operating step-to sense :a-recording' area of *said record for the presence of a data-representing designation and to advance-said record to -a position where a recording area is in sensing "positionyprogramming means operable to effect succeeding operations of said apparatus according to a predetermined plan; means effecting operation of said initial record feeding means;

means effective upon the termination of operation of said'initial feeding means for initiating operation of said-programming means; means controlled bysaid programming means for-operating said normal sensing and feeding means;

sand-means controlled'by the initial sensing op- -eration of said normal sensing and feeding means for stopping operation of said programming means'whenth'e record fed into said: passage by said "initial feeding a means has not reached said stop element; whereby further normal operation of said apparatus is prevented.

5. In apparatus of the classdescribeithe com- "bination of --record sensing means adapted to sense records containing data-representing des-' 'ignations, record feeding means normally operable tofeed records one at a'time to an initial "sensing positionrelation'to said record sensing means, first operating means coordinated with said record feeding means for operating said I sensing means to test for the presence of' a record in said initial sensing'position ata time when'a-record' normally would occupy such position, second operating means normallyefiective 'following the operation of said first operating means to produce relative movement between said sensing means and said record for causing said sensing means to sense various parts of said record in sequence, and control means responsive to said sensing means for disabling said :second operating means in the event said sensing means does not detect a record in saidinitial sensing position.

RICHARD J. "WHALEN.

STANLEY "T. KULPA.

- REFERENCES CITED The fol-lowing'references are of record in the file of this patent:

. UNITED .S'IATES PATENTS Number Name Date 1,991,729 Brougham Feb. 19,1935 2,403,550 Rabendaetal July-9, 1946 

